Apparatus for visually indicating a current travel route of a vehicle
First Claim
1. A visual travel route indicating apparatus for use in a vehicle, comprising:
- distance sensor means for detecting a current travel distance of said vehicle;
gas rate sensor means for detecting a current azimuthal deviation generated by said vehicle during turning operation;
said gas rate sensor means being isolatedly enclosed in an atmosphere within thermostatic chamber means;
said thermostatic chamber means comprising a casing having said gas rate sensor means disposed therein and provided with first heating means, and an outer housing having said casing disposed therein and provided with second heating means;
signal processing means, operatively cooperating with said distance and gas rate sensor means, for arithmetically obtaining a current point plotted on two-dimensional coordinates per a given unit distance of travel of said vehicle in accordance with the output signal from each of said distance and gas rate sensor means; and
display means, operatively cooperating with said signal processing means, for visually indicating a current path of travel of said vehicle in accordance with location data on the two-dimensional coordinates, changing from time to time as the vehicle progresses in its travel, and obtained by said signal processing means.
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Accused Products
Abstract
A visual travel route indicating apparatus for use in an automotive vehicle. The apparatus comprises a distance sensor for detecting a current distance of travel of the vehicle, a gas rate sensor for detecting a current azimuthal deviation generated during travel of the vehicle, a closed thermostatic chamber for hermetically enclosing the gas rate sensor such that it is isolated from external temperature fluctuations, and a signal processing unit for arithmetically obtaining a current location or point plotted on two-dimensional coordinates per a given unit travel distance from the outputs of the two sensors. A travel path store is provided for storing the thus-obtained data so as to be read out subsequently for a continuous visual indication of a current path of travel or locus of the vehicle on a display unit for visually indicating a continuous path of travel of the vehicle. A manual operating unit is provided for setting and modifying the visual indication pattern to be displayed on the display unit. The closed thermostatic chamber is positively heated to a desired constant temperature level by a suitable heater so that the gas rate sensor may be protected from a possible temperature fluctuation in the external environment.
16 Citations
5 Claims
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1. A visual travel route indicating apparatus for use in a vehicle, comprising:
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distance sensor means for detecting a current travel distance of said vehicle; gas rate sensor means for detecting a current azimuthal deviation generated by said vehicle during turning operation; said gas rate sensor means being isolatedly enclosed in an atmosphere within thermostatic chamber means; said thermostatic chamber means comprising a casing having said gas rate sensor means disposed therein and provided with first heating means, and an outer housing having said casing disposed therein and provided with second heating means; signal processing means, operatively cooperating with said distance and gas rate sensor means, for arithmetically obtaining a current point plotted on two-dimensional coordinates per a given unit distance of travel of said vehicle in accordance with the output signal from each of said distance and gas rate sensor means; and display means, operatively cooperating with said signal processing means, for visually indicating a current path of travel of said vehicle in accordance with location data on the two-dimensional coordinates, changing from time to time as the vehicle progresses in its travel, and obtained by said signal processing means. - View Dependent Claims (2, 3, 4, 5)
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Specification